
  Lists open files and the corresponding processes.
  Note: Root privileges (or sudo) is required to list files opened by others.
  More information: <https://manned.org/lsof>.

  Find the processes that have a given file open:

      lsof path/to/file

  Find the process that opened a local internet port:

      lsof -i :port

  Only output the process ID (PID):

      lsof -t path/to/file

  List files opened by the given user:

      lsof -u username

  List files opened by the given command or process:

      lsof -c process_or_command_name

  List files opened by a specific process, given its PID:

      lsof -p PID

  List open files in a directory:

      lsof +D path/to/directory

  Find the process that is listening on a local IPv6 TCP port and don't convert network or port numbers:

      lsof -i6TCP:port -sTCP:LISTEN -n -P

